Super Pet Tropical Fiddle Sticks are flexible wooden sticks that can be twisted and bent into a variety of fun shapes creating a fun hiding spot for your furry friend. You'll have fun creating a log cave, tree stump or a stick stairway for your pet. These colorful logs also provide your pet with a safe source for their instinctive chewing behaviors. Small is perfectly sized for Hamsters, Gerbils, Mice and other cozy critters. Medium is perfectly sized for Guinea Pigs, Chinchillas, Pet Rats, and other cozy critters. Large is perfectly sized for Rabbits, Ferrets, Guinea Pigs, Chinchillas, and other cozy critters.